One accessory, endless benefits. The Rear Roof Liner for the Can-Am Defender not only acts as a barrier for outside elements like heat and sound, but makes it even easier to install roof accessories for the ultimate outdoor thrills. It's quick, easy and a total game changer. Installation & Compatibility Quick and easy vehicle enhancement. Allows better integration of other accessories installed on the roof. Needs to be installed with Sport Roof (715003038). Seal Kit necessary when installing with Sport Roof. Not compatible with Soft Rear Panel.